/*
 * Copyright 2021 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package androidx.work.rxjava3

import android.app.Notification
import android.content.Context
import androidx.work.Data
import androidx.work.DefaultWorkerFactory
import androidx.work.ForegroundInfo
import androidx.work.ForegroundUpdater
import androidx.work.ListenableWorker.Result
import androidx.work.ProgressUpdater
import androidx.work.WorkerParameters
import androidx.work.impl.utils.SynchronousExecutor
import androidx.work.impl.utils.futures.SettableFuture
import com.google.common.truth.Truth.assertThat
import io.reactivex.rxjava3.core.Single
import java.util.UUID
import java.util.concurrent.Executor
import org.junit.Test
import org.junit.runner.RunWith
import org.junit.runners.JUnit4
import org.mockito.Mockito.mock

@RunWith(JUnit4::class)
class RxForegroundInfoTest {
    @Test
    fun testGetForegroundInfo() {
        val context = mock(Context::class.java)
        val foregroundInfo = WorkerGetForeground(context, createWorkerParams())
            .foregroundInfoAsync.get()
        assertThat(foregroundInfo).isEqualTo(testForegroundInfo)
    }

    @Test
    fun testSetForegroundInfo() {
        val context = mock(Context::class.java)
        var actualForegroundInfo: ForegroundInfo? = null
        val foregroundUpdater = ForegroundUpdater { _, _, foregroundInfo ->
            actualForegroundInfo = foregroundInfo
            val future = SettableFuture.create<Void>()
            future.set(null)
            future
        }
        val worker = WorkerSetForeground(context, createWorkerParams(
            foregroundUpdater = foregroundUpdater
        ))
        val result = worker.startWork().get()
        assertThat(result).isEqualTo(Result.success())
        assertThat(actualForegroundInfo).isEqualTo(testForegroundInfo)
    }
}

private val testForegroundInfo = ForegroundInfo(10, mock(Notification::class.java))

private class WorkerGetForeground(
    appContext: Context,
    workerParams: WorkerParameters
) : RxWorker(appContext, workerParams) {
    override fun createWork(): Single<Result> {
        throw UnsupportedOperationException()
    }

    override fun getForegroundInfo(): Single<ForegroundInfo> = Single.just(testForegroundInfo)
}

private class WorkerSetForeground(
    appContext: Context,
    workerParams: WorkerParameters
) : RxWorker(appContext, workerParams) {
    override fun createWork(): Single<Result> {
        setForeground(testForegroundInfo).blockingAwait()
        return Single.just(Result.success())
    }
}

private fun createWorkerParams(
    executor: Executor = SynchronousExecutor(),
    progressUpdater: ProgressUpdater = mock(ProgressUpdater::class.java),
    foregroundUpdater: ForegroundUpdater = mock(ForegroundUpdater::class.java)
) = WorkerParameters(
    UUID.randomUUID(),
    Data.EMPTY,
    emptyList(),
    WorkerParameters.RuntimeExtras(),
    1,
    0,
    executor,
    RxWorkerTest.InstantWorkTaskExecutor(),
    DefaultWorkerFactory,
    progressUpdater,
    foregroundUpdater
)
